I was wondering why semi-trucks are called that. Doesn’t semi mean “part of”? A semi-truck is a whole truck if I ever saw one!
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Semi truck or semi is short for semi-trailer truck. It describes a truck consisting of a tractor and a half-trailer. The trailer is a half-trailer because it does not have wheels both front and back, but only in back. The front is supported by the tractor.
protected by Mari-Lou A Jun 9 '14 at 7:01
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